Pavement weathering or stripping is a major distress in highway networks
in arid regions. Using the Saudi Arabian road network as a case study area,
seventeen road test sections were selected, out of which eight were stripped
and nine were non-stripped. Aggregates from quarries used to build these
sections were also collected and subjected to detailed physical and chemical
tests to evaluate the ability of these tests to distinguish between stripped
and non-stripped sections. The modified Lottman test
was used to distinguish between compacted mixes. In addition, the Swedish
Rolling Bottle test, was also found to be effective in
being able to distinguish between different asphalt-aggregates for stripping
potential. Eleven anti-stripping liquid additives, lime and cement, in addition
to two polymers, were evaluated for their ability to reduce/eliminate stripping
potential of stripping-prone aggregates. It was found that EE-2 Polymer,
Portland cement, and their combination were effective with all aggregate
sources.